Page 17 - ABB in brief 02|2021

02l2021 มิเตอร์อเนกประสงค์ M1M 10 และ M1M 12 17 6
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M1M 10 and M1M 12

Technical features

M1M 10 M1M 12
Auxiliary power supply Auxiliary Power Supply range 80V to 300 V AC or DC
Frequency Hz 50 - 60
Burden 5VA Max
Installation category CAT III
Protection fuse 200mA
Measurement accuracy Voltage ±1,0%
Current ±1,0%
Active Power (M1M 12) ±1,0%
Active Energy (M1M 12) ±1,0%
Voltage measurement inputs Measurement range [V] 40-300V AC (p-n)
Measurement category CAT III
Rated frequency [Hz] 50 - 60Hz
Max. VT Primary [V] 999 Kv
Burden [VA] 0.2VA Max. per phase
Current measurement inputs CT secondary 1A or 5A
Measurement range 50mA - 6A¹
Max. CT Primary [A] 99 kA.
Burden [VA] 0.2VA Max. per phase
User Interface Access to device 2 pushbuttons
Display type LED display
LED Digit height [mm] 10
Communication protocol RS-485
(M1M 12 Modbus)
Protocol Modbus RTU
Communication interface RS485 with optical isolation
Baud rate 2400 bps to 19200 bps
Parity number Odd, Even, None
Stop bit 1,2
Address 1-247
Mechanical characteristics Overall dimensions [mm] 96 x 96 x 58 (52mm depth inside
the switchboard)
IP degree of protection (IEC 60529) IP51
Weight [kg] 0,300
Climatic conditions Operating temperature -10°C to +60°C²
Storage temperature -25°C to +70°C
Relative humidity 5% to 95% non condensing
Pollution degree 2
Altitude Below 2000ms
Standards Electrical safety IEC 61010-1
EMC IEC 61000 4-2,4-3,4-6,4-8,4-4,4-11;
CISPR-22
¹ Below 250mA, additional error of 0.1% of full scale.
² Below 10°C, mean temperature coefficient is 0.15%/K